Finding the Third Proportional to 90,531 and 195,628.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,531 : 195,628.50 = 195,628.50 : x
2. Step 2: Convert to fraction form
   90,531/195,628.50 = 195,628.50/x
3. Step 3: Cross multiply
   90,531x = 195,628.50 × 195,628.50
4. Step 4: Simplify right side
   90,531x = 38,270,510,012.25
5. Step 5: Solve for x
   x = 38,270,510,012.25/90,531
6. Step 6: Final answer
   x = 422,733.76